About Prince Friedrich Ferdinand of Schleswig-Holstein-Sonderburg-Glücksburg
Prince Friedrich Ferdinand of Schleswig-Holstein-Sonderburg-Glücksburg (Full German name: Friedrich Ferdinand Carl Ernst August Wilhelm Harold Casimir Nikolaus Prinz von Schleswig-Holstein-Sonderburg-Glücksburg; 14 May 1913, Gotha, Saxe-Coburg and Gotha, Germany – 31 May 1989, Glücksburg, Schleswig-Holstein, Germany) was a prince of the House of Glücksburg.